I have some strange sound problems after updating to the latest gentoo code:

I have now kde version 4.9.3. I'm using an old SB Live! 5.1 card on a board with a built in HDA Intel PCH device. So far I had no problems with the sound, but after the latest update, only the system sounds and amarok are working. With mplayer, xine, vlc etc I have no sound. Tried it with different users and different Phonon backends (GStreamer and vlc).

So far I couldn't find any hint in the net. I'm not sure what kind of log files could be useful to solve this problem. In mplayer debug mode I couldn't see any error messages.